Respiratory rehabilitation training device

Abstract

We provide a respiratory rehabilitation training device. [Solution] The device includes a reusable main unit housing 100 and a replaceable breathing interface component 200, the main unit housing comprising a main airflow passage, an exhaust gas discharge passage, a butterfly valve module and a control module, the main airflow passage comprising a magnetic resistance adjustment module for providing inhalation resistance, the breathing interface component comprising a mask body and a predetermined volume of dead space integrally molded inside it, the end of which is provided with a quick-lock interface, the main unit body comprising a locking base that fits the quick-lock interface, and when the breathing interface component and the main unit body are locked together, the dead space selectively communicates with the main airflow passage or the exhaust gas discharge passage via the butterfly valve module.

Description

Technical Field

[0001] The present invention relates to the field of medical device technology, and specifically to a respiratory rehabilitation training device.

Background Art

[0002] Respiratory rehabilitation training is an important means for patients such as those with chronic obstructive pulmonary disease (COPD) and after lung surgery to recover lung function. Existing respiratory training devices such as threshold inspiratory muscle trainers (IMTs) and three-ball spirometers generally have the following technical bottlenecks. (1) Remarkable health and safety risks: The gas containing bacteria exhaled by the patient remains in the gas path inside the device and cannot be thoroughly cleaned and disinfected, resulting in an obvious risk of cross-infection and being unable to be safely used by multiple people or immunocompromised patients. (2) Rigidification of training modes: Conventional resistors provide fixed or stepped static resistance, so they cannot dynamically adapt according to the real-time flow rate and intensity when the patient breathes, resulting in low training efficiency and a poor user experience for the patient. (3) Dead space management in a dilemma: For the sake of hygiene, when adopting physical isolation by a double airway, the beneficial end-expiratory dead space gas is discarded, significantly increasing the patient's breathing workload. On the other hand, simply retaining the dead space cannot solve the pollution problem. (4) Function singularity and dispersion: Completion of functions such as inspiration training, expiration training, and airway clearance often requires multiple devices, which is inconvenient to use and cannot achieve unified management of data.

[0003] Therefore, in order to solve the problems mentioned in the above background art, it is necessary to provide a respiratory rehabilitation training device.

Summary of the Invention

Problems to be Solved by the Invention

[0004] To achieve the above object, the present invention provides the following technical solutions.

Means for Solving the Problems

[0005] A respiratory rehabilitation training device comprising a reusable main unit and interchangeable respiratory interface components, The main engine housing contains a main airflow passage, an exhaust gas discharge passage, a butterfly valve module, and a control module. The main airflow passage is provided with a magnetic resistance adjustment module for providing intake resistance. The breathing interface component includes a mask body and a dead space of a predetermined volume integrally molded inside it, and a quick-attachment interface is provided at the end of the dead space. The main engine body is provided with a locking base that fits the quick locking interface, and when the breathing interface component and the main engine body are locked together, the dead space selectively communicates with the main airflow passage or the exhaust gas discharge passage via the butterfly valve module.

[0006] Preferably, the control module is controlled to perform the following time-series gas path control: In the exhalation phase, the butterfly valve module is controlled to connect the dead space and the exhaust gas discharge passage. At the end of exhalation, the butterfly valve module is controlled to switch to a fully closed state, thereby sealing in the gas in the dead space. During the intake phase, the butterfly valve module is controlled to switch to a state where the dead space and the main airflow passage are connected.

[0007] Preferably, the magnetoresistive adjustment module is A sleeve rotatably provided in the main airflow passage, An impeller is fixed inside the sleeve and located in the main airflow passage, and is used to drive and rotate the sleeve under the influence of the breathing airflow. An annular metal rotor fixedly fitted to the outside of the sleeve, Two annular permanent magnets are coaxial and slidably mounted on both axial sides of the annular metal rotor, and their magnetization directions are opposite to each other. The system includes an adjustment mechanism configured to drive two of the annular permanent magnets to move synchronously in opposite or opposite directions in order to change the axial air gap between them and the annular metal rotor.

[0008] Preferably, the adjustment mechanism is A slider is fixed to each of the aforementioned annular permanent magnets and slides along a linear motion guideway provided on the main body of the main unit, A rack is fixedly mounted on the slider and extends along the axial direction of the annular permanent magnet, A rotating adjustment rod is rotatably mounted on the main engine body, A drive gear is fixed coaxially to the aforementioned adjustment rotating rod, The system includes a group of intermediate gears that mesh between the drive gear and the two racks and are configured to convert the rotational motion of the drive gear into synchronous, opposite linear motion of the two racks, Here, one end of the adjustment rotating rod extends to the outside of the main unit body, and an adjustment knob is fixed to it.

[0009] Preferably, an electromagnetic coil is wound around the back of the annular permanent magnet, and the electromagnetic coil is electrically connected to the control module and used to fine-tune the magnetic field strength acting on the annular metal rotor based on real-time breathing parameters.

[0010] Preferably, the butterfly valve module includes a valve body, a valve core shaft, and a first valve plate and a second valve plate rotatably mounted on the valve core shaft, wherein the valve body has a common inlet communicating with the locking base, a first outlet connected to the main airflow passage, and a second outlet connected to the exhaust gas discharge passage, and the first valve plate and the second valve plate are configured to rotate on the valve core shaft and to selectively open and close the first and second outlets.

[0011] Preferably, a hydraulic drive mechanism is integrated between the first valve plate and the second valve plate and the valve core shaft, including a first sleeve shaft and a second sleeve shaft rotatably fitted onto the valve core shaft, both of which are fixedly connected to the first valve plate and the second valve plate, respectively, with arc-shaped grooves opened inside both the first sleeve shaft and the second sleeve shaft, with an arc-shaped plate fixed in the arc-shaped groove, with an arc-shaped hydraulic rod fixed to the arc-shaped plate, with an arc-shaped block fixed to the valve core shaft that fits the arc-shaped groove, with an arc-shaped hydraulic chamber opened in the arc-shaped block, and the arc-shaped hydraulic rod is provided to be sealed and slidable along the arc-shaped hydraulic chamber.

[0012] Preferably, the attachment base is provided with ultraviolet disinfection lamp beads surrounding the gas passage interface, and the control module is configured to automatically turn on the ultraviolet disinfection lamp beads when it detects that the respiratory interface component has been removed.

[0013] Preferably, a throat-shaped opening is formed at the connection point between the dead space and the quick-lock interface, and the inner diameter of the throat-shaped opening is smaller than the equivalent diameter of the dead space.

[0014] Preferably, the mechanical visual feedback mechanism further includes a power transmission component that is interlocked with the sleeve and an indicator member connected to the power transmission component, The power transmission component converts the rotational motion of the sleeve into the reciprocating linear motion of the support member. At least a portion of the indicator member is exposed to a display window provided in the main unit body. [Effects of the Invention]

[0015] Compared to existing technologies, this invention provides a respiratory rehabilitation training device and has the following beneficial effects.

[0016] 1. We established unprecedented hygiene and safety standards. Through quadruple protection—isolation of the source of infection using "disposable accumulated dead space," active isolation using "sequential gas path switching," and passive isolation using "UVC active sterilization" and "one-way inhalation / exhalation valves"—we theoretically achieved complete prevention of cross-infection, providing a safety foundation for infection control within hospitals and for use by multiple people in households.

[0017] 2. Smart, personalized, and efficient training has been achieved. The magnetic resistance system, which combines "mechanical coarse adjustment + electromagnetic fine adjustment," allows the resistance to continuously and dynamically adapt to the patient's real-time respiratory effort, improving the scientific and efficient nature of training. The "smart recovery and reuse of dead space gas at the end of exhalation" technology cleverly resolves the conflict between hygiene and physiological load, making training more comfortable and physiologically appropriate.

[0018] 3. We have completed a highly integrated system design. Functions such as inspiratory muscle training, physiological dead space management, visual biofeedback, and data monitoring and recording are perfectly integrated into a single handheld device. Modular design (e.g., extension tubes) covers the entire rehabilitation scene from outpatient care to the hospital bed, greatly improving clinical convenience and treatment consistency.

[0019] 4. The reliability of the system and the user experience are ensured. The adjustment method using annular opposing magnets has a clear principle, is stable and reliable. The hydraulic-driven butterfly valve (or an alternative motor-driven one) ensures the speed and accuracy of valve plate control. The mechanical vision feedback is intuitive and easy to understand, improving the patient's willingness to participate and compliance.

Brief Description of the Drawings

[0020] [Figure 1] It is a schematic diagram of the overall structure in the present invention. [Figure 2] It is a schematic diagram of the structure of the main housing in the present invention. [Figure 3] It is a schematic diagram of the cross-sectional structure of the main housing in the present invention. [Figure 4] It is a schematic diagram of the structure of the butterfly valve module in the present invention. [Figure 5] It is a schematic diagram of the structure of the first valve plate and the second valve plate in the present invention. [Figure 6] It is an enlarged schematic diagram of the A part structure in FIG. 5. [[ID=,24]] [Figure 7] It is a schematic diagram of the structure of the breathing interface component in the present invention. [Figure 8] It is a schematic diagram of the structure of the magnetoresistive adjustment module in the present invention. [Figure 9] It is a schematic diagram of the structure of the adjustment rotating rod in the present invention.

Embodiments for Carrying out the Invention

[0021] Referring to FIGS. 1 to 9, this embodiment mainly provides a respiratory rehabilitation training device including a reusable main body and a disposable breathing interface component.

[0022] The main body is a handheld device, and the housing is made of medical-grade ABS resin. Inside, The core function module integrates the main airflow passage 1 and the magnetoresistive adjustment module 4.

[0023] The main airflow passage 1 penetrates the main engine, and a replaceable air filter is provided at its inlet end. A magnetic resistance adjustment module 4 is provided in the middle of the passage, which includes a sleeve 41, an impeller 42, an annular metal rotor 43, an annular permanent magnet 44, and an adjustment mechanism 45.

[0024] Sleeve 41 and Impeller 42: The precision stainless steel sleeve 41 is horizontally supported within the main engine case by tiny ball bearings at both ends, and the multi-blade impeller 42 is fixed to the inside of the sleeve 41 by interference fit and is positioned entirely within the cross-section of the main airflow passage 1.

[0025] Annular metal rotor 43: The annular metal rotor 43, made of an aluminum alloy with excellent conductivity, is fixedly fitted to the outer middle portion of the sleeve 41 by a thermocompression bonding process.

[0026] Annular permanent magnets 44 and adjustment mechanism 45: Two annular permanent magnets 44 are provided coaxially on both axial sides of an annular metal rotor 43, and their magnetization directions are opposite to each other. Each annular permanent magnet 44 is fixed with adhesive to a slider 451, which slides slidably in cooperation with a pair of precision linear motion guideways inside the main unit. A rack 452 is fixed to each slider 451, and the tooth surfaces of the two racks 452 are parallel to each other and face inward.

[0027] Power transmission by the adjustment mechanism 45: The adjustment rotating rod 453 is supported within the main unit by a bearing, and a drive gear 454 is coaxially fixed to the portion located between the two racks 452. Between the drive gear 454 and the two racks 452, there is an intermediate gear group (for example, a dual gear that meshes with the drive gear, with two branch gears of the dual gear meshing with the upper and lower racks respectively). When the adjustment rotating rod 453 is rotated, the drive gear 454 drives the two racks 452 to move linearly in opposite directions in synchronous motion via the intermediate gear group, thereby enabling the movement of the two annular permanent magnets 44 in opposite directions or backwards, and precisely adjusting the air gap between them and the annular metal rotor 43. One end of the adjustment rotating rod 453 extends outside the housing and is connected to a graduated adjustment knob 455.

[0028] Electromagnetic fine-tuning function: An electromagnetic coil (not shown) is wrapped around the back (the side away from the rotor) of each annular permanent magnet 44, and the coil wires are connected to the control module.

[0029] Within the main engine housing, an exhaust gas discharge passage 2 independent of the main airflow passage 1 is provided, one end of which is connected to a butterfly valve module 3, and the other end is connected to the exhaust grille at the tail of the main engine. A unidirectional exhaust valve with resistance may be provided in the passage.

[0030] The butterfly valve module 3 is located at one end of the main engine housing closest to the engagement base 6 and includes a valve body 31, a valve core shaft 32, a valve plate, and a hydraulic drive mechanism.

[0031] Valve body 31: A Y-shaped three-way branched cavity is formed inside, and includes a common inlet 311 located on the side that communicates with the gas passage interface on the engagement base 6, a first outlet 312 located on the upper side that communicates with the main airflow passage 1, and a second outlet 313 located on the lower side that communicates with the exhaust gas discharge passage 2.

[0032] Valve core shaft 32 and valve plate: The stainless steel valve core shaft 32 is fixedly attached to the valve body 31, the first sleeve shaft 321a and the second sleeve shaft 321b are coaxial and independently rotatably fitted onto the valve core shaft 32, the first valve plate 33 and the second valve plate 34 are fixed to the first sleeve shaft 321a and the second sleeve shaft 321b, respectively, and both the first valve plate 33 and the second valve plate 34 are elliptical silicone sheets.

[0033] Hydraulic drive mechanism: Arc-shaped grooves 322 are machined into the inner walls of the first sleeve shaft 321a and the second sleeve shaft 321b, respectively. An arc-shaped plate 323 is fixed within the groove to which one arc-shaped hydraulic rod 324 having the same arc angle as the groove is connected. An arc-shaped block 325 of the same shape is fixed on the fixed valve core shaft 32 to each position corresponding to the arc-shaped groove 322. Inside each arc-shaped block 325, an arc-shaped hydraulic chamber 326 is precisely machined to fit the cross-section of the arc-shaped hydraulic rod 324. A seal ring is fitted to the front end of the rod 324 and inserted into the corresponding arc-shaped hydraulic chamber 326 to form a sealed sliding pair. The two arc-shaped hydraulic chambers 326 are each connected to a bidirectional micro-hydraulic pump controlled by a control module via independent micro-oil passages. The movement of hydraulic oil into and out of the arc-shaped hydraulic chambers 326 by the pumps causes the arc-shaped hydraulic rod 324 to slide, thereby driving the first sleeve shaft 321a or the second sleeve shaft 321b and the valve plate on it to rotate, enabling independent opening and closing control of the valve plate.

[0034] It further includes a mounting base 6 and a disinfection system. A locking base 6 is provided at the front end of the main engine housing, and its center is a gas passage interface aligned with the common inlet 311 of the butterfly valve. Multiple ultraviolet disinfection lamp beads 61 are embedded in an annular pattern around the outer circumference of the interface, and a microswitch (not shown) is further provided inside the locking base 6 to detect whether the respiratory interface component is properly installed.

[0035] The system further includes a control module and a mechanical visual feedback mechanism. The control module integrates a microprocessor, a flow pressure sensor, a motor drive circuit, and a Bluetooth® module. The main unit housing is provided with a display window 7. The power transmission component of the mechanical visual feedback mechanism includes a gear fixed to a sleeve 41, a multi-stage reduction gear group that meshes with it, and a rack that meshes with the final output gear. An indicator member (color slider) is fixed to the rack, with a portion of it exposed through the display window 7. The main unit housing is further provided with a reset component (which can be a spring or a hydraulic push rod) that drives the indicator member back to its initial position.

[0036] The aforementioned respiratory interface component is a disposable sterile consumable, A mask body 5 which may be a silicone mouthpiece or nasal mask, A dead space 51 is formed integrally with the mask body 5 by injection molding, and has a streamlined shape that gradually shrinks and gradually expands at the end, and has a throat section constriction opening 53 that is inclined toward the second outlet 313, It includes a quick-lock interface 52 having a sealing ring on its end face, locking claws and an RFID chip on its side wall, and capable of quick-locking and sealing to the locking base 6.

[0037] Overall operation flow S1, Preparation: Insert the new respiratory interface component into the attachment base 6, triggering the microswitch, which in turn causes the control module to read the RFID information and turn off the UV disinfection lamp beads 61.

[0038] S2, Exhalation Phase: When the patient exhales, the control module, based on the sensor signal, commands the hydraulic pump to drive the second sleeve shaft 321b to rotate the second valve plate 34 to open the second outlet 313, while keeping the first outlet 312 closed by the first valve plate 33. The exhaled gas then enters the exhaust gas discharge passage 2 and is discharged via the dead space 51, throat constriction 53, butterfly valve common inlet 311, and second outlet 313.

[0039] S3, End-of-Expiratory Switching Phase: When exhalation ends, the control module quickly commands the hydraulic pump to rotate the second valve plate 34 to close the second outlet 313, at which point both valve plates close simultaneously, tightly sealing the dead space 51 and any clean end-of-expiratory gases remaining in the patient's mouth and pharynx at the front of the system.

[0040] S4, Inspiratory Phase: When the patient begins to inhale, the control module commands the hydraulic pump to drive the first sleeve shaft 321a to rotate the first valve plate 33 to open the first outlet 312 and to maintain the closed state of the second valve plate 34. External air flows in through the filter of the main airflow passage 1 and rotates the impeller 42 and the annular metal rotor 43 as it passes through the impeller 42. The annular metal rotor 43 disconnects the axial magnetic field generated by the two annular permanent magnets 44, generating an eddy current damping force that forms training resistance. The patient first inhales the gas trapped in the dead space, and then inhales fresh air regulated by the resistance. The control module can fine-tune the magnetic field with the current of the electromagnetic coil based on the real-time flow rate to achieve adaptive resistance. The rotation of the impeller 42 is converted into linear motion of the indicator member via a power transmission component, and real-time visual feedback is provided in the display window 7.

[0041] S5. Replacement and Disinfection: After use, press the button to remove and discard the contaminated respiratory interface component, reset the microswitch, and the control module will automatically turn on the UV disinfection lamp bead 61, irradiating and disinfecting the exposed mouth area of ​​the butterfly valve to prepare for the next use.

[0042] Furthermore, for post-operative patients, intensive care unit (ICU) patients, or patients who have extreme mobility difficulties and cannot hold the main unit in their hands for training, a selective embodiment of the present invention provides one that includes a disposable extension tube component.

[0043] Structure of disposable extension tube component: This component is a sterile, individually packaged, disposable consumable. A tubular body using medical-grade transparent flexible PVC bellows, Located at one end of the tubular body, its structure and dimensions perfectly match those of the quick-lock interface 52 of the standard semi-breathing interface component, and it has the same locking claws, sealing ring and RFID chip, and is used for direct connection to the main unit's locking base 6, with a main unit-side connector. It includes a patient-side interface located at the other end of the tubular body, whose structure and dimensions perfectly match those of a standard mounting base on the main body, and which has a mechanism for triggering a gas passage interface and connection, and is used to connect standard, unmodified respiratory interface components.

[0044] Instructions for Use and Smart Adaptation: When using the device, first connect the main unit connector of the extension tube component to the main unit's attachment base. The main unit's control module reads the "extension tube mode" identifier and tube volume parameter in the RFID chip, automatically updating the system's total dead space volume calculation to "extension tube volume + dead space volume of standard breathing interface component," and performing corresponding flow resistance compensation calibration for the flow sensor. Subsequently, connect the standard breathing interface component to the patient-side interface of the extension tube. In this case, the entire airflow path from the patient to the main unit's butterfly valve is covered by disposable consumables, the operating logic inside the main unit remains unchanged, and the core hygienic isolation advantages are perfectly inherited.

[0045] In summary, this invention constructs a highly reliable infection control system through physical isolation of contamination sources using "disposable dead space," active management through "time-series switching of gas paths," "UV-C immediate sterilization," and redundant protection using "one-way valves." Furthermore, the magnetoresistive system, which combines "manual stepless coarse adjustment" and "electromagnetic real-time fine adjustment," enables continuous and adaptive adjustment of respiratory resistance according to the patient's effort, significantly improving training efficiency and individualization levels. The "recovery and reuse of dead space gas at the end of exhalation," achieved through high-precision time-series control, perfectly resolves the contradiction between "prevention of cross-infection" and "control of respiratory load" that plagued conventional devices. Moreover, the core functions are highly integrated into a handheld device, and the adopted annular opposing magnetic circuit and hydraulic / mechanical driven valve structure have clear principles, excellent stability and reliability. The modular extension tube design further expands clinical applicability, and mechanical visual feedback provides real-time, intuitive respiratory status indication that does not require power, improving patient participation and compliance.

[0046] The above are merely preferred specific embodiments of the present invention, and the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the art disclosed herein, based on the technical solutions and inventive concepts of the present invention, should be included within the scope of protection of the present invention. [Explanation of Symbols]

[0047] 1...Main airflow passage, 2... Exhaust gas discharge passage, 3...Butterfly valve module, 31... Valve body, 311... Common entrance, 312...Exit 1, 313...Second exit, 32... Valve core shaft, 321a...First sleeve axis, 321b...Second sleeve axis, 322... Circular groove, 323... Arc-shaped plate, 324... Arc-shaped hydraulic rod, 325... Arc-shaped block, 326... Arc-shaped hydraulic chamber, 33...First valve plate, 34...2nd valve plate, 4...Magnetic resistance adjustment module, 41...Sleeves, 42... Impeller, 43...Annular metal rotor, 44... Ring-shaped permanent magnet, 45...adjustment mechanism, 451...Slider, 452... rack, 453...Adjustable rotating rod, 454... Drive gear, 455...Adjustment knob, 5... Mask body, 51...Dead space, 52...Quick-lock interface, 53... Throat constriction, 6...Attachment base, 61... UV disinfection lamp beads, 7...Display window, 100...Main engine housing, 200... Respiratory interface component.

Claims

1. Includes a reusable main unit and replaceable breathing interface components, The main engine body includes a main engine housing, and within the main engine housing are provided a main airflow passage (1), an exhaust gas discharge passage (2), a butterfly valve module (3), and a control module. The main airflow passage (1) is provided with a magnetic resistance adjustment module (4) for providing intake resistance. The breathing interface component includes a mask body (5) and a dead space (51) of a predetermined volume integrally molded inside it, and a quick-attachment interface (52) is provided at the end of the dead space (51). The main engine body is provided with a locking base (6) that fits the quick locking interface (52), and when the breathing interface component and the main engine body are locked together, the dead space (51) selectively communicates with the main airflow passage (1) or the exhaust gas discharge passage (2) via the butterfly valve module (3). The control module is controlled to perform the following time-series gas path control: In the exhalation phase, the butterfly valve module (3) is controlled to connect the dead space (51) and the exhaust gas discharge passage (2). At the end of exhalation, the butterfly valve module (3) is controlled to switch to a completely closed state, thereby sealing in the gas in the dead space (51). In the intake phase, the butterfly valve module (3) is controlled to switch to a state in which the dead space (51) and the main airflow passage (1) are connected. The aforementioned magnetoresistive adjustment module (4) A sleeve (41) is rotatably provided in the main airflow passage (1), An impeller (42) is fixed inside the sleeve (41) and located in the main airflow passage (1), and is used to drive and rotate the sleeve (41) under the driving of the breathing airflow, An annular metal rotor (43) is fixedly fitted to the outside of the sleeve (41), Two annular permanent magnets (44) are coaxial and slidably mounted on both axial sides of the annular metal rotor (43), and have opposing magnetization directions. Includes an adjustment mechanism (45) configured to drive two annular permanent magnets (44) to move synchronously toward opposite or opposite directions in order to change the axial air gap between the annular metal rotor (43), The butterfly valve module (3) includes a valve body (31), a valve core shaft (32), and a first valve plate (33) and a second valve plate (34) rotatably mounted on the valve core shaft (32). The valve body (31) has a common inlet (311) communicating with the locking base (6), a first outlet (312) connected to the main airflow passage (1), and a second outlet (313) connected to the exhaust gas discharge passage (2). The first valve plate (33) and the second valve plate (34) rotate on the valve core shaft (32) and are configured to selectively open and close the first outlet (312) and the second outlet (313). A respiratory rehabilitation training device characterized by the following features.

2. The adjustment mechanism (45) is A slider (451) is fixed to each of the aforementioned annular permanent magnets (44) and slides along a linear motion guideway provided on the main unit body, A rack (452) is fixed to the slider (451) and extends along the axial direction of the annular permanent magnet (44), A rotating adjustment rod (453) is rotatably mounted on the main engine body, A drive gear (454) is fixed coaxially to the aforementioned adjustment rotating rod (453), The drive gear (454) and the two racks (452) are meshed with a group of intermediate gears configured to convert the rotational motion of the drive gear (454) into synchronous, opposite linear motion of the two racks (452), Here, one end of the adjustment rotating rod (453) extends to the outside of the main unit body, and an adjustment knob (455) is fixed to it. The respiratory rehabilitation training device according to feature 1.

3. An electromagnetic coil is wound around the back of the annular permanent magnet (44), and the electromagnetic coil is electrically connected to the control module and used to fine-tune the magnetic field strength acting on the annular metal rotor (43) based on real-time breathing parameters. The respiratory rehabilitation training device according to feature 1.

4. A hydraulic drive mechanism is integrated between the first valve plate (33) and the second valve plate (34) and the valve core shaft (32), and includes a first sleeve shaft (321a) and a second sleeve shaft (321b) that are rotatably fitted onto the valve core shaft (32), and both are fixedly connected to the first valve plate (33) and the second valve plate (34), respectively, and inside either the first sleeve shaft (321a) or the second sleeve shaft (321b) An arc-shaped groove (322) is also made, an arc-shaped plate (323) is fixed to the arc-shaped groove (322), an arc-shaped hydraulic rod (324) is fixed to the arc-shaped plate (323), an arc-shaped block (325) that fits the arc-shaped groove (322) is fixed to the valve core shaft (32), an arc-shaped hydraulic chamber (326) is made in the arc-shaped block (325), and the arc-shaped hydraulic rod (324) is provided to be sealed and slidable along the arc-shaped hydraulic chamber (326). The respiratory rehabilitation training device according to feature 1.

5. The attachment base (6) is provided with ultraviolet disinfection lamp beads (61) surrounding the gas passage interface, and the control module is configured to automatically turn on the ultraviolet disinfection lamp beads (61) when it detects that the breathing interface component has been removed. The respiratory rehabilitation training device according to feature 1.

6. A throat-port opening (53) is formed at the connection point between the dead space (51) and the quick-lock interface (52), and the inner diameter of the throat-port opening (53) is smaller than the equivalent diameter of the dead space (51). The respiratory rehabilitation training device according to feature 1.

7. The mechanical visual feedback mechanism further includes a power transmission component that is interlocked with the sleeve (41) and an indicator member connected to the power transmission component, The power transmission component converts the rotational motion of the sleeve (41) into the reciprocating linear motion of the support member. At least a portion of the indicator member is exposed to the display window (7) provided in the main unit body. The respiratory rehabilitation training device according to feature 1.

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